Browsing Faculty of Engineering by Title

Now showing items 1660-1679 of 2479

    • 'n Ondersoek na die geskiktheid van 'n datavloeiverwerker as 'n herstruktureerbare spesiale verwerker 

      Loubser, Nicolas Johan (Stellenbosch : Stellenbosch University, 1984-11)
      AFRIKAANSE OPSOMMING: Hierdie tesis behels 'n ondersoek na die geskiktheid van 'n datavloei-verwerker om as 'n herstruktureerbare spesiale verwerker te dien. Die werking van 'n datavloei-verwerkermodel word aan die ...

    • National innovation system : South Africa and China compared 

      Zhang, Haoyi (Stellenbosch : Stellenbosch University, 2012-03)
      ENGLISH ABSTRACT: The concept of National Innovation System (NIS) as new conceptual framework appeared in the late 1980s. The framework of NIS not only focuses on the science and technology development of a country, but ...

    • Natural balancing mechanisms in converters 

      Van der Merwe, Johannes Wilhelm (Wim) (Stellenbosch : University of Stellenbosch, 2011-03)
      AFRIKAANSE OPSOMMING: Hierdie proefskrif handel oor die natuurlike balanserings meganismes van veelvlakkige en modulêre omsetters wat fase-skuif dragolf puls wydte modulasie gebruik. Die meganismes kan in twee hoof groepe ...

    • Natural balancing of multicell converters 

      Wilkinson, Richardt Howard (Stellenbosch : University of Stellenbosch, 2004-04)
      ENGLISH ABSTRACT: Multilevel converters were developed as a result of a growing need for higher power converters. This dissertation addresses a specific multilevel topology called the multicell topology. A problem associated ...

    • Natural balancing of the neutral-point-clamped converter 

      Salagae, Isaac Mahijoko (Stellenbosch : Stellenbosch University, 2003-12)
      ENGLISH ABSTRACT: The three-level neutral-point-clamped(NPC) converter, being a widely used multilevel inverter, received a lot of attention recently due to problems associated with de-link capacitor voltage balancing. ...

    • Natural balancing of three-phase 2-cell and 3-cell multicell converters 

      Salagae, Isaac Mahijoko (Stellenbosch : University of Stellenbosch, 2010-03)
      ENGLISH ABSTRACT: The multicell inverter, being a widely used multilevel converter, has received much attention in recent years due to problems associated with cell capacitor voltage. In this dissertation we study the ...

    • Natural circulation air-cooled two-phase closed-loop thermosyphon heat transfer system 

      Abrahams, T. (Stellenbosch : Stellenbosch University, 2017-03)
      ENGLISH ABSTRACT: This project considers the passive cooling aspects of a small-scale inherently safe, light water, 100 MWe, modular nuclear reactor concept. This concept uses triple containment of the core and consists ...

    • Navigational precision of an autonomous ground vehicle using multiple sensors 

      Potgieter, Frederik Jacobus (Stellenbosch : Stellenbosch University, 2016-03)
      ENGLISH ABSTRACT: This thesis investigated the navigational precision of an autonomous ground vehicle by fusing different sensors as a means of localization and navigation. Different GPS (Global Positioning System) modules ...

    • Near-optimum cost minimisation of transporting bioenergy carriers from source to intermediate distributors 

      Roberts, Theari (Stellenbosch : University of Stellenbosch, 2010-03)
      ENGLISH ABSTRACT: The world is facing an energy crisis with worldwide energy consumption rising at an alarming rate. The effects that fossil fuels have on the environment are also causing concern. For these two reasons ...

    • A needle positioning system for percutaneous procedures 

      Garth-Davis, Bryan (Stellenbosch : Stellenbosch University, 2012-12)
      ENGLISH ABSTRACT: In percutaneous procedures, where the surgeon inserts a needle into a target in the patient, it is challenging to access the target at the rst attempt. Repeated needle insertion attempts are highly ...

    • A network traffic analysis tool for the prediction of perceived VoIP call quality 

      Maritz, Gert Stephanus Herman (Stellenbosch : University of Stellenbosch, 2011-12)
      ENGLISH ABSTRACT: The perceived quality of Voice over Internet Protocol (IP) (VoIP) communication relies on the network which is used to transport voice packets between the end points. Variable network characteristics ...

    • Neural network models of slotted waveguide directional couplers 

      Muller, Martinette (Stellenbosch : Stellenbosch University, 2001-12)
      ENGLISH ABSTRACT: The application of artificial neural networks to microwave circuits is investigated. A neural network model is developed for two parallel waveguides coupled by a longitudinal slot in the common broad ...

    • A neurocontrol paradigm for intelligent process control using evolutionary reinforcement learning 

      Conradie, Alex van Eck (Stellenbosch : University of Stellenbosch, 2004-12)
      ENGLISH ABSTRACT: A Neurocontrol Paradigm for Intelligent Process Control using Evolutionary Reinforcement Learning Balancing multiple business and operational objectives within a comprehensive control strategy is a ...

    • Neurocontroller development for nonlinear processes utilising evolutionary reinforcement learning 

      Conradie, Alex van Eck (Stellenbosch : Stellenbosch University, 2000-04)
      ENGLISH ABSTRACT: The growth in intelligent control has primarily been a reaction to the realisation that nonlinear control theory has been unable to provide practical solutions to present day control challenges. ...

    • Neutral-point-clamped shunt active filter 

      Van Greunen, Corneluis Erasmus (Stellenbosch : University of Stellenbosch, 2005-03)
      This thesis presents the design and implementation of a Neutral-Point-Clamped (NPC) shunt Active Filter (AF) for non-linear loads. A NPC shunt AF is an attractive solution for AFs at the medium volage level, because it ...

    • A new approach to embedded computer benchmarking 

      Smit, Willem A. (Stellenbosch : Stellenbosch University, 2006-04)
      ENGLISH ABSTRACT: Years of experience gained in the field while designing and building new digital hardware for clients in both the private and public sectors have shown that choosing the correct processor for the job ...

    • The new product development process : small firm success by studying larger firms 

      Van Zyl, Wiehann (Stellenbosch : University of Stellenbosch, 2008-03)
      The aim of this research was to investigate new product development practices for application to small businesses. Although larger companies, in general, have well-established practices from which smaller companies can ...

    • New reinforcement learning algorithm for robot soccer 

      Yoon, M.; Bekker, J.; Kroon, S. (Operations Research Society of South Africa, 2017)
      ENGLISH ABSTRACT: Reinforcement Learning (RL) is a powerful technique to develop intelligent agents in the field of Artificial Intelligence (AI). This paper proposes a new RL algorithm called the Temporal-Difference value ...

    • A new vision for education in quality 

      Reinecke, Robert (SAIIE, 1992)
      ENGLISH ABSTRACT: Excellence in manufacturing follows immediately from the complementary attributes of productivity and quality. Both have a cultural and technical component. A culture ofexcellence in both doing the right ...

    • Next generation high temperature gas reactors : a failure methodology for the design of nuclear graphite components 

      Hindley, Michael Philip (Stellenbosch : Stellenbosch University, 2015-03)
      ENGLISH ABSTRACT: This thesis presents a failure evaluation methodology for nuclear graphite components used in high-temperature gas reactors. The failure methodology is aimed at predicting the failure of real parts based ...